diff options
Diffstat (limited to 'src/include/taler_json_lib.h')
-rw-r--r-- | src/include/taler_json_lib.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/include/taler_json_lib.h b/src/include/taler_json_lib.h index 171b3d009..a1e4d8830 100644 --- a/src/include/taler_json_lib.h +++ b/src/include/taler_json_lib.h @@ -294,6 +294,37 @@ TALER_JSON_exchange_wire_signature_make ( /** + * Extract a string from @a object under the field @a field, but respecting + * the Taler i18n rules and the language preferences expressed in @a + * language_pattern. + * + * Basically, the @a object may optionally contain a sub-object + * "${field}_i18n" with a map from IETF BCP 47 language tags to a localized + * version of the string. If this map exists and contains an entry that + * matches the @a language pattern, that object (usually a string) is + * returned. If the @a language_pattern does not match any entry, or if the + * i18n sub-object does not exist, we simply return @a field of @a object + * (also usually a string). + * + * If @a object does not have a member @a field we return NULL (error). + * + * @param object the object to extract internationalized + * content from + * @param language_pattern a language preferences string + * like "fr-CH, fr;q=0.9, en;q=0.8, *;q=0.1", following + * https://tools.ietf.org/html/rfc7231#section-5.3.1 + * @param field name of the field to extract + * @return NULL on error, otherwise the member from + * @a object. Note that the reference counter is + * NOT incremented. + */ +const json_t * +TALER_JSON_extract_i18n (const json_t *object, + const char *language_pattern, + const char *field); + + +/** * Obtain the wire method associated with the given * wire account details. @a wire_s must contain a payto://-URL * under 'url'. |